.TH std::ranges::random_access_range 3 "2024.06.10" "http://cppreference.com" "C++ Standard Libary"
.SH NAME
std::ranges::random_access_range \- std::ranges::random_access_range

.SH Synopsis
   Defined in header <ranges>
   template< class T >

     concept random_access_range =                                        \fI(since C++20)\fP

       ranges::bidirectional_range<T> &&
   std::random_access_iterator<ranges::iterator_t<T>>;

   The random_access_range concept is a refinement of range for which ranges::begin
   returns a model of random_access_iterator.

.SH Example


// Run this code

 #include <array>
 #include <deque>
 #include <list>
 #include <ranges>
 #include <set>
 #include <valarray>
 #include <vector>

 template<typename T> concept RAR = std::ranges::random_access_range<T>;

 int main()
 {
     int a[4];
     static_assert(
             RAR<std::vector<int>> and
             RAR<std::vector<bool>> and
             RAR<std::deque<int>> and
             RAR<std::valarray<int>> and
             RAR<decltype(a)> and
         not RAR<std::list<int>> and
         not RAR<std::set<int>> and
             RAR<std::array<std::list<int>,42>>
     );
 }

.SH See also

   ranges::sized_range      specifies that a range knows its size in constant time
   (C++20)                  (concept)
   ranges::contiguous_range specifies a range whose iterator type satisfies
   (C++20)                  contiguous_iterator
                            (concept)
